Messages in this thread | | | Date | Thu, 12 Jan 2023 06:08:14 -0800 | From | Christoph Hellwig <> | Subject | Re: [PATCH v5 3/9] iov_iter: Use IOCB/IOMAP_WRITE if available rather than iterator direction |
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On Thu, Jan 12, 2023 at 10:31:01AM +0000, David Howells wrote: > > And use the information in the request for this one (see patch below), > > and then move this patch first in the series, add an explicit direction > > parameter in the gup_flags to the get/pin helper and drop iov_iter_rw > > and the whole confusing source/dest information in the iov_iter entirely, > > which is a really nice big tree wide cleanup that remove redundant > > information. > > Fine by me, but Al might object as I think he wanted the internal checks. Al?
I'm happy to have another discussion, but the fact the information in the iov_iter is 98% redundant and various callers got it wrong and away is a pretty good sign that we should drop this information. It also nicely simplified the API.
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